If you “Stopped” the plan: Unfortunately, no. When you stop a plan, YouVersion removes it from your profile. You will have to start it again. However, if you remember where you left off, you can start a plan as new, then manually check days off as complete.
If you did NOT “Stop” the plan:
1) Home screen: Tap Plans.
2) My plans: Tap the plan you want to edit.
3) Tap Settings.
4) Tap Catch Me Up.